Railway truck bolster column guide



Sept. 20, 1949. H. H. sHAFFER RAILWAY TRUCK BOLSTER COLUMN GUIDE Filedsept. 26, 1945 2 Sheets-Sheet l A Tron/[Erm Sept. 2o, 1949.

RAILWAY TRUCK BOLSTER COLUMN GUIDE Filed Sept. 26, 1945 2 Sheets-Sheet 2JNVENTOR. l Jaffew H. H. sHAFFl-:R 2,482,219

Patented Sept. 20, 1949 UNITED 2,482,2 14-9 RAILWAY TRUCK BOLS'IEEQOLUMN GUI-11E Harvey H. ShaffergBerwick, Pa. Application September 26,194,5, LSeriahllglo. .618,722

1 Claim. (Cl. 105-207) I This invention relates to column guides for usein connection with the truck bolsters of railway rolling stock.

Heretofore, the column guides and the posts engaged thereby have beenintegral portions of the parts from which they are extended and, as aresult of the relative up and down movement of the posts and the guides,wear has been created which it has been diflicult or impossible toovercome.

An object of the present invention is to provide a new and novelarrangement of cooperating posts and guides so constructed that, in theevent of excessive wear, the guides can be removed from their supportingstructure and new guides substituted therefor, these guides beingautomatically locked in position.

With the foregoing and other objects in View which will appear as thedescription proceeds, the invention consists of certain novel details ofconstruction and combinations of parts hereinafter more fully describedand pointed out in the claim, it being understood that changes may bemade in the construction and arrangement of parts without departing fromthe spirit of the invention as claimed.

In the accompanying drawings, the preferred form of the invention hasbeen shown.

In said drawings,

Figure 1 is an elevation of a portion of a side frame and a sectionthrough a portion of a truck bolster, these parts being equipped withcooperating elements such as constitute the present invention.

Figure 2 is a section on line 2-2, Figure 1.

Figure 3 is an enlarged section on line 3-3, Figure 2.

Figure 4 is an elevation of a portion of the truck bolster, the rguidetherein being broken away.

Figure 5 is a section on line 5 5, Figure 3.

Referring to the figures by characters of reference, I designates aportion of the side frame forming a part of the railway car and thisside frame has column posts, one of which has been indicated at 2. Thecolumn post has a concave shallow channel 3 forming a bearing surface atopposite sides of which are converging rlat bearing surfaces d. All ofthese bearing surfaces are extended along substantially vertical lines.

A portion of a truck bolster has been indicated at 5 and each endthereof is formed with a dovetailed channel closed at the top by anabutment or shoulder 'I against which is adapted to be seated a block 8constituting a guide and which i is proportioned to rit snugly withinthe channel 6. This block or guide 3 has an intermediate convex bearingsurface 9 proportioned to t snugly against the concave bearing surface 3of the column post and said bearing surface El constitutes the innerwall of a recess in the guide or block 8. The side walls III of thisrecess diverge outwardly and are adapted, when the guide and the columnpost are assembled, to be positioned parallel with and in slidingcontact with the surfaces of the post.

The inner or back wall of the channel E is flat and the block or guide 8is adapted to fit snugly thereagainst when in position in the channel.Rein-forcing and guiding ribs I I can be formed on the inner wall of thechannel 6 and these are adapted to be seated in corresponding grooves I2in the guide 8.

Formed within the truck bolster 5 and the guide 8 are matching upwardlyextending grooves I3 and I respectively. The groove I4, which is formedin the guide 8, has recesses I 5 and I6 at its respective ends. In oneof these recesses, namely the recess at the upper end of the groove I4,there is anchored the offset end I`I of a leaf spring I8 which thus issuspended within the groove. The lower end of the leaf spring has a lipI 9 which is adapted to enter the recess I6 when the leaf spring isflattened out within the groove Irl. Normally, however, the leaf springis sprung back into the groove I3 so that the lip I9 overlies and issupported close to the lower end wall of groove I3 as indicated at 2U.

In practice the guide block is slid upwardly within the channel 6, atwhich time spring I9 is held under tension. As soon as the guide block 8abuts the shoulder I, the spring I 8 will snap outwardly into the grooveI3 and above the end wall or shoulder 2! so that the guide 8 thus willbe locked in position in the truck bolster 5 as shown particularly inFigure 3. Consequently, as the frame and the truck bolster move upwardlyand downwardly relative to each other, all wear therebetween will betaken up by the post 2 and the guide S and when excessive wear results,a suitable tool can be inserted into an opening 2| and pressed againstspring I8 so as to disengage the spring from the end wall or shoulder2D, thereby permitting withdrawal of the guide block from its seat inthe groove 6.

J/'hat is claimed is:

In a railway car construction, the combination with a column post havingbearing surfaces eX- tended along substantially vertical lines, of atruck bolster .having a channel, a guide block ,a insertible upwardlyinto said channel and retained in part by the walls thereof, saidchannel being closed at its upper end to provide a terminal seat for theguide block, said guide block having bearing surfaces for snug andwiping contact with the bearing surfaces of the post, there beingmatching grooves Within the guide block and the The following referencesare of record in theV file of this patent:

, UNITED STATES PATENTS Number Name Date 839,785 Richardson Dec. 25,1906 885,818 Whyte Apr. 28, 1908 1,173,397 Trowbridge Feb. 29, 19161,829,578 Barrows Oct.y 27, 1931 2,263,759 Cottrell Nov. 25, 19412,370,105 Edstrom Feb. 20, 1945 REFERENCES CITED

